Which of the following best describes an Arrhenius acid-base reaction?​

The maximum wavelength of light capable of dissosciating i-i bond in one molecule of iodine is 0.77m.

The energy needed to break a bond and create two atomic or molecular fragments, each containing one of the original shared pair of electrons, is known as the bond dissociation energy.

The energy required to break one i-i bond = bond energy per mol/ avagudro's number.

= 119.255x 10^3/ 6.023 x 10^23 J

Let the wavelength of the photon required to break one i-i bond be lambda .

Lambda = hc/E = 6.6x10^-34x3x10^8 x 6.023 x 10^23/ 153 x 10^3

=119.2554 x 10^-3/ 153 x10^3= 0.77 m

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Answer:

The correct answers are

Particles are dissolved

and light beam passes through invisibility

Explanation:

Odyssey

The question requires us to calculate the energy, in joules (J), necessary to heat 83.5g of water from 26.7 °C to 75°C.

The heat energy (Q) can be calculated from the mass of the sample (m), its specific heat capacity of the substance (C) and temperature variation (ΔT), as given by the following equation:

Since the question did not provide a value for the specific heat capacity of water, we'll adopt the value 4.182 J/g.°C. Applying the values provided by the question, we can calculate the heat energy as:

Therefore, the heat energy necessary to heat the amount of water given grom 26.7 to 75°C is 1.69 x 10^4 J (or 16900 J).

Your answer is 4 protons 4 electrons and 5 neutrons

Answer:

HBr

Explanation:

Answer:

chemical

Creatine Phosphate (with oxygen) So all muscle cells contain a high-energy compound called creatine phosphate which is broken down to make more ATP quickly. Creatine phosphate can supply the energy needs of a working muscle at a very high rate, but only for about 8–10 seconds.adenosine triphosphate (ATP)

The source of energy that is used to power the movement of contraction in working muscles is adenosine triphosphate (ATP) – the body's biochemical way to store and transport energy. However, ATP is not stored to a great extent in cells

Answer:

A thermodynamic quantity equivalent to the capacity of a system to do work.

Explanation:

Nonchemical water pollution is a type of pollution caused by the physical components in the environment that alter water quality and impede its functionality. As a result, water becomes unfit for human and animal consumption.

The following are the effects of nonchemical water pollution:

a decrease in nutrients. (false) The decrease in nutrients in the water is not an effect of nonchemical water pollution. The growth of aquatic plants is reduced as a result of a lack of nutrients. Additionally, aquatic animals, which depend on these plants for food, are forced to relocate to other regions. This can have an impact on the food web in the water.

b. The Great Pacific Garbage Patch. (true)The Great Pacific Garbage Patch, a collection of ocean trash in the North Pacific, is a result of nonchemical water pollution. The trash can entangle marine animals, smother and kill coral, and impair navigation, all of which can have negative effects on the marine ecosystem.

c. Thermal shock. (false)Thermal shock is not an effect of nonchemical water pollution. Thermal shock happens when the temperature of the water changes suddenly, which can be harmful to aquatic animals and plants. This can occur naturally or as a result of human activities, but it is not a direct consequence of nonchemical water pollution.

d. Cloudy and brown water. (false)Cloudy and brown water is not a result of nonchemical water pollution. It is caused by sediment that has washed into the water, clouding the water and causing it to turn brown. As a result, aquatic plants may be unable to photosynthesize, and the water may become unsuitable for animal life.

The effects of chemical pollution on water resources include the following:

A decrease in the amount of oxygen available to marine life as a result of the discharge of chemicals into water bodies or leaks from underground storage tanks (USTs).The acidification of waterways as a result of acid rain or industrial discharges. Chemicals entering the food chain of marine life through direct consumption or through biomagnification.

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Answer:

Different types of rocks have different chemical composition.

Explanation:

Rock can be distinguished from each other by their chemical composition which is a product of the minerals they contain.

Answer:

0.578 mol H₂SO₄

Explanation:\(\frac{3.48 * 10^{23}H2SO4}{1}\) ×\(\frac{1 mol H2SO4}{6.02214*10^{23}molecules H2SO4}\) =0.5778 mol H₂SO₄ = 0.578mol H₂SO₄

Answer:

I think it's true

Explanation:

hey by the way

Answer:

they both move at a different force... believe I'm right

Explanation:

Answer:

The moon

Explanation:

Force? I think

Answer:

The calculated solution density is lower than the actual density

The silica (SiO2) content in magma can affect its behavior in several ways: Viscosity, Explosive Eruptions, Cooling Rate, Composition of Rocks Formed.

Viscosity: Silica content has a significant impact on the viscosity of the magma, which refers to its resistance to flow. Magmas with higher silica content tend to have a higher viscosity, making them more resistant to flow and less likely to erupt.

Explosive Eruptions: Magmas with high silica content tend to be more explosive when they erupt, because the high viscosity prevents the release of trapped gas. When gas finally escapes, it creates a violent explosion.

Cooling Rate: Silica-rich magmas tend to cool more slowly than magmas with low silica content, allowing more time for mineral crystals to grow and form solid rock.

Composition of Rocks Formed: The silica content of magma affects the type of rocks that are formed when it cools and solidifies. Magmas with high silica content tend to form volcanic rocks such as rhyolites and granites, while magmas with low silica content tend to form basaltic rocks.

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The original number of atoms in the radioactive substance was 800 atoms.

In radioactive decay, the number of atoms of a substance decreases over time. Each half-life is the time it takes for half of the atoms to decay. If the number of atoms has decayed to 25 in five half-lives, it means that after each half-life, the number of atoms halved until it reached 25.

To determine the original number of atoms, we need to reverse the process. Since there are five half-lives, we know that the number of atoms halved five times. Starting from 25 atoms, we can double the number of atoms five times to find the original amount.

25 atoms → 50 atoms → 100 atoms → 200 atoms → 400 atoms → 800 atoms

Therefore, the original number of atoms in the radioactive substance was 800 atoms.

In radioactive decay, the number of atoms decreases exponentially over time due to the spontaneous emission of particles or radiation. The rate of decay is determined by the half-life, which is the time required for half of the atoms in a sample to decay. By applying the concept of half-lives, scientists can estimate the original amount of a radioactive substance based on the current number of atoms.

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Answer:

No because it changes velocity, instead of accelerating

Explanation:

and yes, I am in K12 ツ

Answer:

no

Explanation:

it changes velocity, instead of accelerating

Answer: ummmm

Explanation:

Answer:

Explanation:

Tums is an over-the-counter (OTC) antacid. It's used to treat heartburn, also known as acid reflux. Tums can also be used to treat other symptoms of indigestion. It's usually safe to drink alcohol when taking Tums

In an electric discharge the emission spectra of helium is an example of flame test.  light is released with the energy corresponding to the difference in energy between the higher and lower states.

Electrons are stimulated to something like a higher energy level when a molecule or atom absorbs energy. When the electron returns to the lower energy level, light is released with the energy corresponding to the difference in energy between the higher and lower states.

Because several levels of energy are available, each electron can experience numerous transitions, each of which produces a distinct wavelength that makes up the emission spectrum. In an electric discharge the emission spectra of helium is an example of flame test.

Therefore, in an electric discharge the emission spectra of helium is an example of flame test.

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Answer:

im confused on what you mean

Explanation:

\(\\ \sf\longmapsto Acceleration=\dfrac{v-u}{t}\)

\(\\ \sf\longmapsto Acceleration=\dfrac{7-0}{0.1}\)

\(\\ \sf\longmapsto Acceleration=\dfrac{7}{0.1}\)

\(\\ \sf\longmapsto Acceleration=70m/s^2\)

It is the 400 nm photon that has the greater energy by a factor of 1.77.

We know that the wavelength has to do with the horizontal distance that is covered by a wave. We know that the longer the distance that is covered then the weaker the wave. In other words, the wavelength of the wave is inversely proportional to the to the energy of the wave. The greater the wavelength, the lesser the energy.

Let us now find the energy of each of the wavelengths;

E = hc/λ

E = energy of the light

h = Plank's constant

c = speed of light

λ = wavelength

For the  700 nm photon;

E = 6.6 * 10^-34 * 3 * 10^8/ 700 * 10^-9

E = 2.8 * 10^-19 J

For the 400 nm photon;

E = 6.6 * 10^-34 * 3 * 10^8/ 400 * 10^-9

E=  4.95 * 10^-19 J

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It is important for science teachers to know how to prepare stock solutions for several reasons. nowing how to prepare stock solutions is important for science teachers as it ensures a reliable source of substances, saves time and resources, and helps teach important scientific skills.

Firstly, stock solutions are concentrated solutions that contain a known amount of a substance. By preparing stock solutions, teachers can ensure that they have a reliable and consistent source of the substance for various experiments and demonstrations.

Secondly, stock solutions can save time and resources. Instead of measuring out small amounts of a substance for each experiment, teachers can simply dilute the stock solution to the desired concentration. This makes the process more efficient and reduces the risk of errors in measurement.

Lastly, preparing stock solutions allows science teachers to teach students about the importance of accuracy and precision in scientific experiments. They can demonstrate the correct techniques for preparing solutions and emphasize the importance of following procedures carefully.

In conclusion, knowing how to prepare stock solutions is important for science teachers as it ensures a reliable source of substances, saves time and resources, and helps teach important scientific skills.

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Answer:

Explanation:

what did you get?

The first two chemical equations are reversible while the other two are irreversible.

Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.

A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .

The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.

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Answer:

i think is  A. Huntington’s disease, which is a dominant disorder

Explanation:

if i not correct please correct me

Answer:

Answer is option choice: A

Explanation:

Other person is indeed correct.